Glass molding apparatus



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L/OSEPH L. MEN/v/ T7 fliffw United States Patent 3,2063% GLASS MOLDING APPARATUS Joseph L. Mennitt, Toledo, Ohio, assignor to Owens- Illinois Glass Company, a corporation of Ohio Continuation of application Ser. No. 64,096, Oct. 21,

1960, which is a continuation of application Ser. No.

733,533, May 7, 1958. This application Jan. 15, 1964,

Ser. No. 339,841

11 Claims. (Cl. 65-357) The present application is a continuation of my copending application, Serial No. 64,096, filed October 21, 1960, now abandoned, the latter being a continuation of an earlier application Serial No. 733,533, filed May 7, 1958, now abandoned.

My invention relates to a glass molding apparatus for producing hollow glass articles, such as glass containers or jars. Particularly the invention relates to such an apparatus for use in the manufacture of containers by a press and blow method regardless of whether these containers be of a size in the narrow neck or wide mouth classification of ware.

The essence of this invention is applicable equally to either the press and blow method or the blow and blow method of making containers.

In the usual press and blow and blow and blow machines the various mechanisms for operating the blank molds and blow molds as well as the mechanisms which cooperate with the blank mold, such as baffles, blowheads, etc., are carried separately and independently of the blank and/or blow mold arms. This is particularly true of the blank or parison forming units of these machines.

As a consequence of this, the time of the opening and closing movements of the mold arms, the movement of the various cooperating blow-heads, battles, etc. must be coordinated with respect to each other and in most instances these movements must be overlapped in order to save time intervals and thereby reduce the total operating or forming cycle.

Such timing, of course, then becomes an intricate system and beyond this, it also supplies certain detrimental features. For example, a batlle plate operating in conjunction with a blank forming mold when brought into contact with such a mold is, of course, under pneumatic pressure and because of this pressure, provides a tendency for the molds to shift in one direction or another. Of course, any such shifting thereby provides a movement as between the blank mold cavities and the neck mold cavities resulting in certain detrimental features being applied to the glass such as checks, crizzles, etc.

These same remarks as to the detrimental features of the normal blow and blow processes are also true in the press and blow field of molding.

On prior machines, the mold components are mounted on members individually pivoted or otherwise attached to the glass machine frame and the members manipulated so that the components cooperate in the forming cycle to form a charge of glass to a molded shape. In so doing these members and components apply equal and opposite reaction forces to the machine frame and after the locking devices are of the reaction or opposing force variety. In pressing glass by a modern machine, high-speed cycle, these forces become extremely great and often concentrated at one or more points of the apparatus, so that the molding unit by necessity has been heretofore constructed as a heavy and cumbersome mechanism. As such, the parts or components of the apparatus may shift; one with respect to the other, and self-alignment during operation may be virtually impossible.

It is the concept of this present invention that the arms, provided for carrying the molding cavity inserts of a 3,206,296 Patented Sept. 14, 1965 "ice blank mold, for example, are adapted for certain limited oscillatory movement about the pivotal mounting, about which these arms open and close in order to permit the blank cavities to thus seek a registering position with respect to the cooperating neck mold and become perfectly aligned therewith.

In addition to the above, these mold arms are also provided with an arm locking system carried thereon and movable therewith so that in the application of the closing or locking pressures, the mold arms will be locked together with respect to each other and the force applied for so doing will be concentrated on the mold arms rather than between the mold arms and some separate stationary point.

There is also supplied and carried on these mold arms pressure applying means which are specifically adapted to apply pressure to at least one-half of the molding cavity inserts to thereby force the two mating halves of the inserts to be held in tightly closed relation to each other as well as in aligned relation, such holding or closing pressure being applied totally on and within the arm and against the mold arm locking pressure.

Also carried on these arms is a mechanism for moving a mold cavity baffle plate or closing member into and out of cavity closing position, the movement of this baflie being coordinated with a gob guiding member also carried on the mold arms. The apparatus for locking and releasing the mold cavity baffle plate in operative position is also carried on and with the mold arms.

In this manner the actual blank mold arms become a complete molding unit, so arranged and constructed that its various components may be brought into perfect alignment with each other. In addition, this blank molding unit may also shift or move as a unit about the mold arm fulcrum to seek perfect alignment with the pressing plunger or other blank or parison forming tools.

With respect to the operation of the mold arms per se, that is, their opening and closing movements, these mechanisms are also so mounted as to form an integral part of each mold arm unit and are specific to each unit so far as the opening and closing motions of the mold arms may be concerned.

With most of this cooperating apparatus mounted directly upon the blank mold arms, it should be quite obvious that the interrelated motion of the mechanisms may be carried out with extreme rapidity and in almost any desired sequence and that any such sequence need not necessarily wait for the complete closing and/or opening of the molds before being actuated.

It is one of the objects of the present invention to provide an assembly of several mold components including the mold arms, mold halves, gob guides, bafiles, neck molds and pressing plungers, associated so as to form in effect a self-contained unit when they are closed and locked together and independent of connection with the machine, such as the frame thereof, other than of course for support of the assembly in place, so that when locked the several pressures applied to these components at the several points to lock the mold halves, to lock the neck molds, to lock the bafiles, to lock the mold arms and to press the glass, are self-contained, i.e. they are so contained within the unit that none of the several locked mold component-s can be moved with respect to each other.

Also provided is ability for the complete molding unit to align with the plunger or other forming tools in operation.

This present invention is applicable to almost any form of split mold, i.e., either a blank or a blow mold, in either a blow and blow or a press and blow operation or process and in the production of either narrow neck, semi-widc mouth or wide mouth ware.

end of the container or parison therefor.

For the purpose of presenting a preferred embodiment of the invention, this present disclosure illustrates the press and blow production of narrow neck ware and with such production being of the dual mold type. Specifically, this invention relates to the multiple production of glass parisons by the press and blow method and in particular to the particular mold structure for so doing.

Normally narrow neck ware is produced by the blow and blow method by and through the forming of a parison in an inverted mold. Such method requires positioning a gob guide over the open end of an inverted parison mold, charging the mold through said gob guide and the open top of the mold, removing the gob guide, positioning a blowhead over the mold opening to apply air pressure to the top of the glass for forming the neck Next the blow head is replaced by a bafile, air is admitted through the neck of the parison, and the glass is expanded to the confines of the parison mold. The bafile is lifted, the parison .operated and because of being mounted separately from the mold, they must inherently apply a distorting pressure as between their base of mounting and the mold. Thus, with every contact as between either the gob guide, the baflle or the blowhead, the mold is disturbed from its normal position. This in turn acts disadvantageously upon the parison in the form of causing crizzles, checks, etc. These detrimental results occur mainly because these pressure devices have a rigid base support, separate from the mold, and its own support, with the result that the molds move with respect to each other. Consequently, it is an object of this present invention to obviate this last mentioned condition by providing a structure wherein the various accessories, such as the gob guide, baffie, etc., are locked directly to the mold and the mold is locked directly to its own support and in such manner that there can be no movement of one mold part relative to another.

A further object is to provide an organization of mechanical elements of a design which will provide such coordination as between movements thereof that the total overall forming cycle may be reduced to a minimum.

Another object of the invention resides in the provision of a glass molding apparatus on a glass forming machine wherein the plural components of the molding apparatus are manipulated and brought into cooperating position and locked such that the components and their locking devices collectively constitute a composite or self-contained, integral glass forming unit.

7 Other objects will be apparent from the drawings and the following descriptive material.

In the drawings:

FIG. 1 is an elevational view of a forming machine and glass feeder of the usual well known type to which this present invention is applicable;

FIG. 2 is a sectional elevation through the parison forming mold unit taken at line 2-2 on FIG. 9;

FIG. 3 is a continuation of the lower end of FIG. 1 illustrating the adjusting mechanism for the pressing plunger;

FIG. 4 is a sectional plan view, taken at line 4-4 on FIG. 2, illustrating the mold insert locking mechanism and the gob guide actuating mechanism;

FIG. 5 is a sectional plan view taken at line 5--5 on FIG. 2 illustrating the locking members for the mold support arms and the actuating mechanism for this lock;

FIG. 6 is a partial section taken at line 66 on FIG. 5 illustrating the mold arm lock actuating device;

FIG. 7 is a sectional elevation taken at line 77 on FIG. 4 and illustrates the mounting of the mold arm and the mounting of the parison mold inserts on these mold support arms;

FIG. 8 is an elevational view of the mold support arm lock taken at the arrow A on FIG. 4;

FIG. 9 is a plan view of the mold support arms and illustrating the gob guide mounting and actuating cylinders as well as illustrating the mold arm lock;

FIG. 10 is a sectional elevation taken at line 1010 on FIG. 9, illustrating the actuating cylinders for the combination gob guide and bafile locking and shifting mechanism;

FIG. 11 is an enlarged sectional view of actuating cylinders for locking the gob guides to the parison mold inserts;

FIG. 12 is an enlarged sectional view of the clamps for locking the neck molds to the parison mold inserts;

FIG. 13 is an enlarged partial section illustrating the locking mechanism for locking the parison mold inserts together;

FIG. 14 is an enlarged sectional View of the mechanism for locking the gob guide and baffle to a parison mold insert showing the mechanism unlocked and the baffle removed for gob feeding;

FIG. 15 illustrates the same mechanism as in FIG. 14 with the parts still unlocked but with the battle in position over the mold cavity;

FIG. 16 is an elevation of the rear of the mold arm support bracket illustrating the location and structure of the several mold arm actuating piston and racks;

FIG. 17 is a sectional view taken at line 17-17 on FIG. 25 and illustrates the mold arm opening equalizer;

FIG. 18 is a sectional elevation taken at line 1818 on FIG. 21 and illustrates the structure for locking and unlocking the parison mold arms;

FIG. 19 is a part sectional elevation taken at line 19 19 on FIG. 21 illustrating the mold arm operating racks and the mold arm lock mechanism;

FIG. 20 is a side elevation of the mold arm support bracket further illustrating the location of the mold arm racks and the mold arm equalizing piston;

FIG. 21 is a plan view of the mold arm support bracket illustrating the location of the mold arm lock mechanism and openings for the mold arm cooling;

FIG. 22 is a sectional plan view taken at line 2222 on FIG. 16 illustrating the fluid control valves for the actuation of the mold arms;

FIG. 23 is a sectional plan view taken at line 2323 on FIG. 16 and illustrates the arrangement and structure of a mold arm actuating rack;

FIG. 24 is a sectional plan view taken at line 24-24- on FIG. 16 and illustrates the numerous fluid passages for actuating the mold arms and locks;

FIG. 25 is a sectional elevation taken at line 25-25 on FIG. 16 illustrating the mold arm rack and sector devices;

FIG. 26 is a sectional elevation taken at line 26-26 on FIG. 16 illustrating the mold arm opening and closing cylinders and fluid connections thereto;

FIG. 27 is a part sectional plan view of the mold arms illustrating the bafile and gob guide mechanisms; and

FIG. 28 is a schematic view of the fluid system for operating the various mechanisms essential to this present invention.

Referring to the drawings and in particular to FIG. 1, there is disclosed a container forming machine visually similar in some of its structural aspects to the well-known LS. glass container forming machine. This machine is comprised of a base 10 having mounted thereon a frame 11. Supported on the frame 11 is a blank or parison molding unit 12, including a parison transfer mechanism 14 fulcrumed as at 15 for transferring a parison from its inverted forming position to an upright position to be encompassed by a blowing mold 16.

A feeder 20 of the usual well-known commercial type is adapted to feed charges of molten glass through severing a suspended gob by means of shears 21, discharging same into a gob-guiding trough mechanism 22 which is arranged to guide the individual charges into the open upper ends of the blank or parison cavities in the forming unit 12.

A master timing mechanism 25 is comprised of an elongated cam drum 26 mounted for rotation about the axis of shaft 27 with said drum carrying a series of actuating knobs 28, 29 and 30 spaced along its length and around its circumference. This timing mechanism is also well-known in the industry and is in common use in connection with the well-known LS. machines. A series of valves 35 cooperate with said drum knobs 28-30 and are adapted to permit fluid under pressure to pass from lines 36 and 36a through other conduits or lines to the blank or parison molding or forming unit 12.

The drawings herein illustrate a multiple cavity mechanism and it will be noted that in most instances the mechanisms for each parison mold are identical both in design and operational features. Consequently, the descriptive material wherever possible will be limited to the structure of a single unit or mechanism.

Each blank or parison forming unit 12 is comprised of a pair of mold supporting arms or members 40 and 41 fulcrumed on a common pivot 42 and mounted on each mold support arm are pairs of parison mold inserts 43 and 44, which are formed in mating halves so that when they are brought to closed position, the two halves will thereby form between them a pair of molding cavities 45. These mold inserts are retained in the mold arms by means of the top and bottom clips 47 and the center clips 48. These clips are so designed that the inserts will have a certain amount of freedom of movement both rotatively and vertically with respect to the mold support arms. The vertical position of these mold inserts 43 and 44 is maintained by the contact between the notched surface 460, formed at the bottom end of each insert, and the top surface 46e of the neck mold locks 90 and 91 (see FIG. 13). When the mold members as inserts 43 and 44 move to closed position surface 46 slides upon surface 46b (FIGS. 2 and 13) and causes the members or inserts to be brought into alignment vertically with respect to each other and with respect to the neck molds 88. This freedom of movement of these inserts is for the purpose of permitting the mold insert halves to become properly aligned with respect to each other and with respect to the other cooperating molding elements.

The mold inserts 44, for example, are carried on the mold arm or support member 40 and are arranged for contact with locating blocks 50 and 51, attached to the mold arm 40 and equally spaced diametrically for locating contact. These locating blocks 50 and 51 may either extend through the entire height of the mold support and insert member 44 or there may be several such blocks positioned along the height of the insert member 44.

In the opposite mold support 41 a plurality of pressure applying piston plugs 56 are provided which are located 90 off of the radial center line or mold seam through the split of the cavity inserts 43 and 44. The aforementioned insert member locating blocks 59 and 51 (FIGS. 4 and are each spaced equally 45 off of the radial split line of the mold inserts in order to provide a condition whereby, when locking pressure is applied to the plugs 56, the mold members 44 will be forced equally against the locating blocks 50 and 51, thereby centering the forming cavity 45 with respect to the radial center line through the two mold supporting arms 40 and 41.

The locking members for locking the mold members 43 and 44 to each other and to the mold arms are each comprised of a contact plug 56 having an extending stem 57 slidably mounted in a piston 58 and provided with a spring 59 adapted to maintain the plug 56 in contact with the wall of the mold insert member 43.

Normally this contact between the plug 56 and the mold wall of the insert member 43 is a constant spring pressure contact; however, there are occasions when it is desirable that such contact be discontinued or eliminated and in order to do this, a clearance gap such as at notch 56a in FIG. 13 may be provided so that the plug 56 will not come into physical contact with the Wall of the insert member at that particular point by reason of guide 570 on stem 57 hitting a stop at surface 412. In this way any desired amount of contact along the length of the inserts 43 and between the pressure plugs 56 and the walls of the mold insert members can be obtained and maintained.

In such an arrangement, for example, when the mold support arms 40 and 41 are open, the mold insert members 43 and 44 are held against the retaining clips 47 and 48 by the pressure generated through or from the springs 59. Thus, with the initial closing of the mold arms 49 and 41 and the initiation of contact as between the mold inserts 43 and 44, the mold members are held against each other by this spring pressure.

With the locking of the mold arms 40 and 41, fluid pressure will then be applied to the cylinders 60 and behind the pistons 58 through the admission of fluid through channels and 81 formed in the mold support arm 41. This pressure in turn is transmitted through the plugs 56 to the wall of the mold insert member 43 and through the insert member 44, causing these inserts to equalize or centralize themselves between the locating plates 50 and 51, on mold arm 40, thus bringing these mold inserts on dead center and locking them in this aligned position.

It is to be understood, of course, that as the mold support arms 40 and 41 close, bringing the inserts 43 and 44 toward closed position, the mold inserts will slide up the angular surface 46b (FIGS. 2 and 13) formed on the top of the neck mold rings 88, thus raising the mold inserts 43 and 44 to their proper vertical position as they are closing about the neck rings 88. Thus, with the application of the pressure upon the mold insert plugs 56, the blank mold cavity 45 and the neck cavity of the neck forming rings or members 88 become as one continuous cavity (see FIG. 2).

In order to insure that they remain in this locked and aligned position, neck mold locking yokes of the split ring type 90 and 91 are arranged to lock the blank mold insert members 43 and 44 and the neck ring members 88 to the top end 96 of the pressing plunger cylinder 92 (see FIGS. 2 and 10). These neck ring yokes .90 and 91 are provided with opposed angular surfaces 93 and 94. The upper angular surface 93 of the neck ring yokes is adapted for contact with the angular surface 61 formed on the lower end of the blank mold insert members 43 and 44 and the lower angular surface 94 of these lock members is adapted for wedging contact with a corresponding angular surface 95 formed on the top end of member 96 of the plunger operating cylinder 92.

These neck ring yokes 90 and 91 are actuated by pistons 100 having piston rods 101 arranged for contact with the vertical side walls of the locking devices 90 and 91. Springs 102 are located behind each piston 100 and normally hold the plugs 1611 in physical contact with the locking devices 90 and 91. Pins 404 in the support plate 1195 run in slots 106 in the yokes 99 and 91 to limit their movement.

When the mold parts are in the position shown in FIGS. 2 and 10, pressure is applied behind the pistons 100 through the openings 103 provided in the mold support arms 40 and 41, to thereby apply pressure to the locking devices or yokes 90 and 91, thus causing the several angular surfaces of these locks, the parison mold members and the top of cylinder 92 to be brought into pressure contact, clamping the neck mold members, the parison mold members and the press cylinder 92 together under a compressive pressure and forming an integral or composite molding unit in which all of the exerted pressures are self-contained, including the pressing of the parison.

Each of the parison mold insert members 43 and 44 have their upper and lower ends turned or shaped in such manner as to provide a pressure-applying angular surface 60 and 61 respectively. Mounted to cooperate with the top of each parison mold insert members 43 and 44 are gob guide supporting members 63 and 64 which are adapted to support semi-circular mating gob guide members 65 and 66 in such manner that the gob guides are rigidly attached thereto (see FIGS. and 14). Formed in these gob guide supports 63 and 64 are angular pressure surfaces 67 and 68, the angles of which are opposite to that of the pressure angle 60 formed on the top end of the mold insert members 43 and 44. Yoke members 70 and 71 are disposed opposite to each other and are provided with angular surface areas 72 and 73 adapted for sliding contact respectively with the angular surface areas 60 of the mold insert members 43 and 44.

By reference to FIGS. 2, 9, 1O, 14 and 15, it will be noted that when the yoke members 70 and 71 are moved toward each other the angular surfaces of these yokes will be in sliding contact with the opposed angular surfaces of the gob guide support and the parison mold inserts 43 and 44, thus causing these angular surfaces to move toward each other and to become wedgedly locked together. Contrariwise, when the yokes 70 and 71 are moved away from each other, then the guide supports 63 and 64 are moved away from the mold inserts 43 and 44 as shown in FIGS. 14 and 15. In any of these movements of the yokes 70 and 71, the said movement is always in the same horizontal plane, the result of this being that the guide supports 63 and 64 will move upwardly if the yokes are moving outwardly and conversely when the guide supports 63 and 64 are moved downwardly into locking position with the mold inserts, the yokes or locking devices 70 and 71 are moving toward each other.

The opening and closing of the parison mold supporting arms 40 and 41 is obtained through the actuation of a series of racks 170, 170a, b and 0, each of these being formed on the end of a series of pistons 171 mounted in the several cylinders 172. These horizontally disposed cylinders 172 are formed in a support bracket member 173, said member being also provided with bearing support pads or extensions 177 and 178 adapted to support the fulcrum pin 42 about which the mold arms 40 and 41 open and close. In addition, these pads form a support for the mold arm hinge pin portions 40a, 40b, 41a and 41b. The support 173 is mounted upon and connected to a base member 179 which in turn is mounted upon the frame 11 of the forming machine proper. The racks 170, 170a, 1701? and 1700 mesh with sector gears 174, 174a, 175 and 175a formed respectively on the end of the hinge portions 40a, 40b, 41a and 41b of the arms 40 and 41 and are so arranged in mesh with the racks 170, 170a, 1701) and 1700 as to open and close the arms about the vertical shaft or fulcrum 42.

The mold support arms 40 and 41 are adapted to be locked together when in closed position and for this purpose one portion of a clamping device 200 is attached to the outer forward end of the mold arm 41 and a second portion 201 is attached in aligned relation with portion 200 and to the outer end of the mold arm 40. A movable locking device 202 is arranged for vertical reciprocation in a tongue and groove formation 203 and 203a formed respectively in the member 201 and 200. A retaining plate 20% retains the lockinbg device 202 in the grooves and attached to arm 40. Interlocking fingers 204 are formed on one surface of the member 202 and adapted to look behind fingers 205 formed on the member 200 when the parts are in the position shown in FIG. 8.

Formed on the opposite side of the member 202 is a series of gear teeth 206 adapted to mesh with a sector gear 207 attached on the horizontal shaft 208 which has bearings in and supported on the arm 40. Attached to the opposite end of the shaft 208 is a further secton gear 210, the teeth of which are arranged for meshing engagement with the teeth of a rack 211 mounted in the arm 40 and adapted for physical reciprocation therein. The lower end of this rack is provided with a finger 215 adapted to engage an elongated arcuately shaped member 216, said arcuate shaped member 216 being mounted in a depression 217 formed in the base member 179. This finger formation 215 is adapted to have permanent sliding contact with a groove 216a formed in the member 216 in order that when the mold support arm 40 is being moved to and from its closed position, an operating cont-act can be maintained as between the rack 211 and the arcuate member 216.

This permanent contact as between the members 216 and 211 insures that the mold locking mechanism remains either in locked or unlocked position with regard to the closed or open positions respectively of the mold arms 40 and 41. In addition, this arrangement obviates the need for any loss of time in the establishment of a contact for actuating the mold arm lock when the mold arms reach the closed position. In other words, with this mechanism and this permanent contact, when the mold arms 40 and 41 reach their closed position, the locks can be immediately actuated because of this permanently established contact as between the actuating source of power and the actuating mechanism for the lock.

With this particular mechanism it should be apparent that when the mold arms reach closed position, they can be immediately locked together by the vertical movement of the locking device 202 and when the time is reached that the mold arms should be unlocked, they can be immediately unlocked because of the permanent connection between the source of power and the lock actuating mechanism and the movable parts of the lock can be mounted in the unlocked position both during the opening and closing movements of the arm 40 thus insuring that the locking device will be in its proper position at the instant of either the closing or the beginning of the opening of the mold arms.

The arcuate member 216 provides the connecting link between the mold arm lock and the source of power for locking and unlocking this mechanism. Attached to one end of the arcuate member 216 is a shaft 220 having attached to its lower end an extending arm 221. This arm extends into a cylinder passageway 222 in which is mounted a piston 223. The function of this piston and cylinder 222 and 223 is to lower the pin or shaft 220 and with it the arcuate member 216 which would actuate the gear and rack 210 and 211 and the connecting shaft 208 in such a direction as to move the locking device 202 upwardly and thus unlock the mold arms. To lock the mold arms a piston 225 is mounted in a cylinder 226 and is adapted to have fluid pressure enter therebeneath to move this piston upwardly in contact with the lower face of the member 216, thus moving the rack 211 upwardly. The upper movement of the rack 211, of course, will rotate the sector gear 210 and the shaft 208 and transmit this motion to the sector 207 through the gear teeth 206 on the plate 202 and this locking plate will be moved downwardly, locking the mold support members 40 and 41 together.

The yokes or locking devices 70 and 71, shown in FIGS. 14 and 15, for clamping or locking the gob guides and bafiie plate to the top of the mold insert members 43 and 44 are formed as a horizontal extension of a fulcrum joint (see FIG. 10). By reference to FIG. 9 it will be noted that the fulcrum joints 115 are positioned intermediate each yoke 70 and 71 and on opposite sides of the radial center line of the parison mold arms and connected thereto by webs 115a. The fulcrum 115 is attached to a piston rod 116 of a fluid motor cylinder 117 having a piston 118 therein. The yokes 70 and 71 are also mounted in a slideway formed on the upper top surfaces of the mold support members 40 and 41. Thus when fluid is admitted to the cylinder 117 through the openings 125, the pistons 118 are moved forward, carry- 

1. APPARATUS FOR SHAPING MOLTEN GLASS COMPRISING COMPLEMENTARY SPLIT NECK MOLD MEMBERS, PARISON MOLD SUPPORT ARMS MOUNTED FOR MOLD OPENING AND CLOSING MOVEMENTS, COMPLEMENTARY SPLIT PARISON MOLD MEMBERS MOUNTED ON SAID PARISON SUPPORT ARMS AND CLOSABLE ON SAID NECK MOLD MEMBERS TODEFINE A HOLLOW OPEN-ENDED PARISON CAVITY, A CAVITY CLOSING BAFFLE, A SUPPORT MEANS FOR SAIDNECK MOLD MEMBERS MOUNTED FOR NECK MOLD OPENING AND CLOSING MOVEMENTS, MEANS CONNECTED TO SAID BAFFLE FOR SEQUENTIALLY MOVING THE LATTER LATERALLY INTO AXIAL REGISTRY AND AXIALLY OF SAID CAVITY TO CLOSE THE END OPENING, MEANS FOR LOCKING THE BAFFLE ONTO THE CLOSED SPLIT PARISON MOLD MEMBERS, A PRESSING PLUNGER ACTUATOR MEANS INCLUDING A CYLINGDER MEMBER, A PRESSING PLUNGER CONNECTED TO SAID ACTUATOR MEANS AND RECIPORCALLY MOVABLE THEREBY AXIALLY INTO AND OUT OF SAID NECK MOLD END OPENING OF THE PARISON CAVITY, A LOCKING DEVICE MOUNTED ON AND MOVABLE WITH SAID MOLD SUPPORT ARMS AND ENGAGEABLE WITH THE CLOSED SPLIT PARISON MOLD MEMBERS, MEANS FOR ACTUATING SAID LOCKING DEVICE ENGAGING AND LOCKING SAID PARISON MOLD MEMBERS CLOSED, A SEPARATE LOCKING DEVICE MOUNTED ON AND MOVABLE WITH SAID MOLD SUPPORT ARMS AND ENGAGEABLE WITH THE CLOSED PARISON MOLD MEMBERS AND SAID CYLINDER MEMBER, MEANS FOR ACTUATING SAID SEPARATE LOCKING DEVICE, AND MEANS FOR OPERATING SAID PRESSING PLUNGER ACTUATOR MEANS FOR INSERTING THE PLUNGER INTO PRESSING RELATINSHIP IN SAID PARISON CAVITY AFTER THE PARISON MOLD, NECK MOLD, AND CYLINGER MEMBER ARE LOCKED TOGETHER AS A XOMPOSITE UNIT WITH SAID MOLD SUPPORT ARMS, THEREBY SHAPING GLASS IN SAID CAVITY. 